PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/02-16:27:50
G02     203.3          30.0               11.2 +/-    0.96      19.6 +/-    0.96  0.130 / 0.220
G06     157.9          67.9               10.8 +/-    1.31      11.6 +/-    1.31  0.070 / 0.200
G12     307.4          17.0                9.8 +/-    1.73      23.3 +/-    1.73  0.100 / 0.170
G17     34.4           50.5                8.5 +/-    0.81      10.7 +/-    0.81  0.080 / 0.140
G19     346.7          67.6                9.0 +/-    0.94       9.6 +/-    0.94  0.090 / 0.110
G24     299.3          37.9               11.4 +/-    0.98      17.2 +/-    0.98  0.110 / 0.140
G28     99.9           32.9                9.9 +/-    0.98      16.4 +/-    0.98  0.080 / 0.090